Relyiable hashes in PHP

Sometimes we need to maintain simple hashes, but at the same time we don't want to have them cracked too easily. When using a hash function on a not too complex string (like a single word), there is a risk, that the hash can be cracked using rainbow tables in few minutes.

Initializing objects from other objects in PHP

Sometimes we need to initialize an object based on another object. Typically, if we have a class MyClass and subclass MyExtendedClass with some additional functionality, we may need to turn a MyClass object into a MyExtendedClass object. How to do that easily in PHP?

Dokuwiki Shibboleth authentication backend

DokuWiki is a standards compliant, simple to use Wiki, mainly aimed at creating documentation of any kind. It is targeted at developer teams, workgroups and small companies. It has a simple but powerful syntax which makes sure the datafiles remain readable outside the Wiki and eases the creation of structured texts. All data is stored in plain text files – no database is required. (description taken from DokuWiki homepage).